GB1468826A - Aircraft gas turbine engine air intakes - Google Patents

Aircraft gas turbine engine air intakes

Info

Publication number
GB1468826A
GB1468826A GB5144373A GB5144373A GB1468826A GB 1468826 A GB1468826 A GB 1468826A GB 5144373 A GB5144373 A GB 5144373A GB 5144373 A GB5144373 A GB 5144373A GB 1468826 A GB1468826 A GB 1468826A
Authority
GB
United Kingdom
Prior art keywords
gas turbine
intake
air
diameter
blades
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5144373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB5144373A priority Critical patent/GB1468826A/en
Publication of GB1468826A publication Critical patent/GB1468826A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1468826 Gas turbine engines - air intakes DEFENCE SECRETARY OF STATE FOR 29 Oct 1974 [6 Nov 1973] 51443/73 Headings F1G and F1J The invention relates to an air intake for an aircraft gas turbine engine such as a gas turbine ducted fan engine, the intake being defined by a nacelle having a throat diameter which is not greater than the diameter at which the leading row of compressor or fan rotor blades becomes sonic relative to the local air-flow at a predetermined aircraft and engine operating condition. The air intake shown comprises a nacelle 4 having a throat 6. The leading row of compressor or fan rotor blades is indicated at 3 and the diameter at which the row of blades 3 becomes sonic relative to the local air-flow is indicated at 7. The shock wave emanating from the region of the blades outwardly of the region 7 cannot pass forwardly out of the intake whereby the fan noise is effectively silenced.
GB5144373A 1974-10-29 1974-10-29 Aircraft gas turbine engine air intakes Expired GB1468826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5144373A GB1468826A (en) 1974-10-29 1974-10-29 Aircraft gas turbine engine air intakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5144373A GB1468826A (en) 1974-10-29 1974-10-29 Aircraft gas turbine engine air intakes

Publications (1)

Publication Number Publication Date
GB1468826A true GB1468826A (en) 1977-03-30

Family

ID=10460053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5144373A Expired GB1468826A (en) 1974-10-29 1974-10-29 Aircraft gas turbine engine air intakes

Country Status (1)

Country Link
GB (1) GB1468826A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1308387A1 (en) * 2001-11-02 2003-05-07 Airbus France Air inlet for a jet engine of a commercial airplane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1308387A1 (en) * 2001-11-02 2003-05-07 Airbus France Air inlet for a jet engine of a commercial airplane
FR2831922A1 (en) * 2001-11-02 2003-05-09 Airbus France AIR INTAKE FOR COMMERCIAL AIRCRAFT REACTION ENGINE NACELLE
US6708711B2 (en) 2001-11-02 2004-03-23 Airbus France Air inlet for commercial aircraft jet engine nacelle

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee